Diamond Lake water level history
Daily records since 1971 · Level today: 5,184.00 ft
Highest on record
5,184.47 ft
Dec 5, 2012
Lowest on record
5,153.46 ft
Nov 28, 1973
Today
5,184.00 ft
Oct 21, 2026
Years of data
55
since 1971
In short
Across 21 complete years, 1976 had the lowest average level (5,182.78 ft) and 2017 the highest (5,183.74 ft).
On average the lake is lowest in April (5,182.92 ft) and highest in September (5,183.55 ft).
Diamond Lake level, all years
Loading chart…
Measured
Normal range for the date (middle 50% of past years)
Lowest years
Years ranked by their lowest daily level.
- 1972
- 1976
- 1975
- 1974
- 2022
Yearly highs and lows
| Year | Average | Low | Low date | High | High date |
|---|---|---|---|---|---|
| 2026 (293 days) | 5,183.76 | 5,183.19 | Mar 29 | 5,184.21 | Oct 4 |
| 2025 | 5,183.62 | 5,183.18 | Dec 14 | 5,184.11 | Jan 5 |
| 2024 | 5,183.50 | 5,183.02 | Apr 9 | 5,184.07 | Dec 29 |
| 2023 | 5,183.45 | 5,182.82 | Feb 19 | 5,184.09 | Oct 4 |
| 2022 | 5,183.29 | 5,182.64 | Mar 11 | 5,184.02 | Jun 12 |
| 2021 | 5,183.30 | 5,182.77 | Apr 16 | 5,183.62 | Jan 13 |
| 2020 | 5,183.42 | 5,182.91 | Mar 22 | 5,183.98 | Jun 22 |
| 2019 | 5,183.50 | 5,182.93 | Nov 18 | 5,183.96 | Jun 1 |
| 2018 | 5,183.47 | 5,183.02 | Nov 20 | 5,183.84 | Jun 21 |
| 2017 | 5,183.74 | 5,183.25 | Feb 2 | 5,184.41 | Jun 15 |
| 2016 | 5,183.57 | 5,183.12 | Mar 4 | 5,184.35 | Oct 17 |
| 2015 | 5,183.64 | 5,183.13 | Mar 9 | 5,184.27 | Dec 22 |
| 2014 | 5,183.60 | 5,182.84 | Jan 27 | 5,184.25 | May 15 |
| 2013 | 5,183.48 | 5,182.91 | Mar 18 | 5,184.22 | May 27 |
| 2012 | 5,183.66 | 5,182.88 | Jan 14 | 5,184.47 | Dec 5 |
| 2011 | 5,183.46 | 5,182.71 | Dec 23 | 5,184.15 | Jun 28 |
| 2010 | 5,183.51 | 5,182.77 | Mar 7 | 5,184.34 | Jun 5 |
| 2009 (316 days) | 5,183.50 | 5,182.92 | Feb 21 | 5,184.19 | Jun 13 |
| 2008 | 5,183.45 | 5,182.75 | Apr 18 | 5,184.17 | Jun 9 |
| 2007 (329 days) | 5,183.24 | 5,179.72 | Jan 1 | 5,184.11 | Oct 19 |
| 2006 (295 days) | 5,178.13 | 5,175.38 | Aug 17 | 5,182.70 | Jan 3 |
| 2005 (38 days) | 5,182.70 | 5,182.12 | Dec 25 | 5,183.24 | Dec 2 |
| 1977 (272 days) | 5,183.16 | 5,182.68 | Jan 1 | 5,183.45 | Mar 9 |
| 1976 | 5,182.78 | 5,182.45 | Feb 11 | 5,183.23 | Oct 25 |
| 1975 | 5,182.88 | 5,182.46 | Aug 16 | 5,183.55 | Oct 27 |
| 1974 | 5,182.93 | 5,182.53 | May 4 | 5,183.66 | Jun 5 |
| 1973 (307 days) | 5,182.92 | 5,153.46 | Nov 28 | 5,183.63 | Nov 15 |
| 1972 | 5,182.97 | 5,182.43 | Nov 17 | 5,183.46 | Mar 2 |
| 1971 (92 days) | 5,182.81 | 5,182.40 | Nov 8 | 5,183.28 | Dec 14 |
Levels in feet. Partial years show the number of days with data.
Monthly averages
| Month | Average | Lowest | Highest |
|---|---|---|---|
| January | 5,183.17 | 5,179.72 | 5,184.11 |
| February | 5,183.00 | 5,180.32 | 5,183.78 |
| March | 5,182.96 | 5,178.37 | 5,183.80 |
| April | 5,182.92 | 5,176.75 | 5,184.00 |
| May | 5,183.21 | 5,176.56 | 5,184.31 |
| June | 5,183.48 | 5,176.09 | 5,184.41 |
| July | 5,183.32 | 5,175.50 | 5,184.23 |
| August | 5,183.36 | 5,175.38 | 5,184.02 |
| September | 5,183.55 | 5,182.65 | 5,184.22 |
| October | 5,183.41 | 5,175.88 | 5,184.35 |
| November | 5,182.97 | 5,153.46 | 5,183.96 |
| December | 5,183.09 | 5,178.04 | 5,184.47 |
Download
Daily levels as CSV (9,472 rows; credit the original agencies listed below)